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/*******************************************************************************
* Copyright (c) 2006, 2008 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.core.internal.facet;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Path;
import org.eclipse.jdt.core.IClasspathAttribute;
import org.eclipse.jdt.core.IClasspathEntry;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jpt.core.JptCorePlugin;
import org.eclipse.jpt.utility.internal.CollectionTools;
import org.eclipse.jpt.utility.internal.StringTools;
import org.eclipse.jst.j2ee.classpathdep.ClasspathDependencyUtil;
import org.eclipse.jst.j2ee.classpathdep.IClasspathDependencyConstants;
import org.eclipse.jst.j2ee.project.EarUtilities;
import org.eclipse.wst.common.frameworks.datamodel.IDataModel;
import org.eclipse.wst.common.project.facet.core.IDelegate;
import org.eclipse.wst.common.project.facet.core.IProjectFacetVersion;
/**
* We don't really "install" the JPA facet here. We simply store all the various
* data model properties in the appropriate preferences. These settings will
* used in the POST_INSTALL event listener to build the JPA project.
*/
public class JpaFacetInstallDelegate
implements IDelegate, JpaFacetDataModelProperties
{
public void execute(IProject project, IProjectFacetVersion fv,
Object config, IProgressMonitor monitor) throws CoreException {
monitor = this.nonNullMonitor(monitor);
try {
this.execute_(project, fv, config, monitor);
} finally {
monitor.done();
}
}
private void execute_(IProject project, IProjectFacetVersion fv,
Object config, IProgressMonitor monitor) throws CoreException {
monitor.beginTask("", 1); //$NON-NLS-1$
// NB: WTP Natures (including the JavaEMFNature)
// should already be added, as this facet should
// always coexist with a module facet.
IJavaProject javaProject = JavaCore.create(project);
IDataModel dataModel = (IDataModel) config;
this.configureClasspath(javaProject, dataModel, monitor);
// project settings
JptCorePlugin.setJpaPlatformId(project, dataModel.getStringProperty(PLATFORM_ID));
JptCorePlugin.setConnectionProfileName(project, dataModel.getStringProperty(CONNECTION));
if (dataModel.getBooleanProperty(USER_WANTS_TO_OVERRIDE_DEFAULT_SCHEMA)) {
JptCorePlugin.setUserOverrideDefaultSchemaName(project, dataModel.getStringProperty(USER_OVERRIDE_DEFAULT_SCHEMA));
}
JptCorePlugin.setDiscoverAnnotatedClasses(project, dataModel.getBooleanProperty(DISCOVER_ANNOTATED_CLASSES));
// defaults settings
JptCorePlugin.setDefaultJpaPlatformId(dataModel.getStringProperty(PLATFORM_ID));
monitor.worked(1);
}
private void configureClasspath(IJavaProject javaProject, IDataModel dataModel, IProgressMonitor monitor) throws CoreException {
boolean useServerLibrary = dataModel.getBooleanProperty(USE_SERVER_JPA_IMPLEMENTATION);
if (useServerLibrary) {
return;
}
String jpaLibrary = dataModel.getStringProperty(JPA_LIBRARY);
if (StringTools.stringIsEmpty(jpaLibrary)) {
return;
}
// build the JPA library to be added to the classpath
IClasspathAttribute[] attributes = this.buildClasspathAttributes(javaProject.getProject());
IClasspathEntry jpaLibraryEntry =
JavaCore.newContainerEntry(
new Path(JavaCore.USER_LIBRARY_CONTAINER_ID + "/" + jpaLibrary),
null, attributes, true
);
// if the JPA library is already there, do nothing
IClasspathEntry[] classpath = javaProject.getRawClasspath();
if (CollectionTools.contains(classpath, jpaLibraryEntry)) {
return;
}
// add the JPA library to the classpath
int len = classpath.length;
IClasspathEntry[] newClasspath = new IClasspathEntry[len + 1];
System.arraycopy(classpath, 0, newClasspath, 0, len);
newClasspath[len] = jpaLibraryEntry;
javaProject.setRawClasspath(newClasspath, monitor);
}
private static final IClasspathAttribute[] EMPTY_CLASSPATH_ATTRIBUTES = new IClasspathAttribute[0];
private IClasspathAttribute[] buildClasspathAttributes(IProject project) {
boolean webApp = JptCorePlugin.projectHasWebFacet(project);
if ( ! webApp && this.projectIsStandalone(project)) {
return EMPTY_CLASSPATH_ATTRIBUTES;
}
return new IClasspathAttribute[] {
JavaCore.newClasspathAttribute(
IClasspathDependencyConstants.CLASSPATH_COMPONENT_DEPENDENCY,
ClasspathDependencyUtil.getDefaultRuntimePath(webApp).toString()
)
};
}
private boolean projectIsStandalone(IProject project) {
return EarUtilities.isStandaloneProject(project);
}
private IProgressMonitor nonNullMonitor(IProgressMonitor monitor) {
return (monitor != null) ? monitor : new NullProgressMonitor();
}
}
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